Affiliation:
1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai 201620 P. R. China
2. Department of Chemistry KU Leuven Celestijnenlaan 200F Leuven 3001 Belgium
3. Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi 214122 P. R. China
Abstract
AbstractThe development of a 3D carbon assembly with a combination of extraordinary electrochemical and mechanical properties is desirable yet challenging. Herein, an ultralight and hyperelastic nanofiber‐woven hybrid carbon assembly (NWHCA) is fabricated by nanofiber weaving of isotropic porous and mechanical brittle quasi‐aerogels. Upon subsequent pyrolysis, metallogel‐derived quasi‐aerogel hybridization and nitrogen/phosphorus co‐doping are integrated into the NWHCA. Finite element simulation indicates that the 3D lamella–bridge architecture of NWHCA with the quasi‐aerogel hybridization contributes to resisting plastic deformation and structural damage under high compression, experimentally demonstrated by complete deformation recovery at 80% compression and unprecedented fatigue resistance (>94% retention after 5000 cycles). Due to the superelasticity and quasi‐aerogel integration, the zinc–air battery assembled based on NWHCA shows excellent electrochemical performance and flexibility. A proof‐of‐concept integrated device is presented, in which the flexible battery powers a piezoresistive sensor, using the NWHCA as the air cathode and the elastic conductor respectively, which can detect full‐range and sophisticated motions while attached to human skin. The nanofiber weaving strategy allows the construction of lightweight, superelastic, and multifunctional hybrid carbon assemblies with great potential in wearable and integrated electronics.
Funder
National Natural Science Foundation of China
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Cited by
6 articles.
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